There are a number of factors that could influence the decision to purchase real estate in Garrison, Maryland. Here are some potential pros and cons to consider:

Pros:
- Proximity to Baltimore: Garrison is located just north of Baltimore, which offers a number of employment, educational, and cultural opportunities. Living in Garrison could provide easy access to these amenities.
- Attractive setting: Garrison is surrounded by rolling hills and offers a picturesque, rural setting that can be appealing to many people.
- Strong schools: Baltimore County Public Schools, which includes schools in the Garrison area, are generally regarded as some of the best in the state.
- Proximity to nature: In addition to its own natural beauty, Garrison is located near several parks and nature preserves, such as Soldiers Delight Natural Environment Area and the Loch Raven Reservoir.

Cons:
- High cost of living: As a suburb near a major city, Garrison can be relatively expensive compared to other parts of Maryland or the US.
- Risk of crime: Baltimore has a relatively high crime rate, and while Garrison is generally considered a safe area, crime can still be a concern.
- Limited urban amenities: While Baltimore is nearby, Garrison itself is a smaller, more rural area. Some residents may find that they miss the amenities of a larger city.
- Traffic: Commuting to and from Baltimore can be a challenge, particularly during peak hours.

Of course, these are just a few factors to consider when evaluating whether to purchase real estate in Garrison. Each buyer will have their own priorities and circumstances to weigh against these pros and cons.